How did nationalism end the cold war?

What ultimately caused the collapse of communism in Eastern Europe? Was it a revival of nationalist sentiment, a failure of Soviet central economic planning to provide comparable lifestyles to those in Western Europe, or was it a fundamental failure of communism to integrate itself into Eastern Europe? These issues span different countries, each with their own individual histories. All, however, ultimately acted to the same ends in a relatively uniform period of time to achieve the same result, a result which ended the last European empire of the modern era.

deists, human beings can know god only via reason and the observation of nature, but not by revelation or by supernatural manifestations (such as miracles

battle of the bulge, but are there any multiple choice options?